The Origin of Lunar Mascon Basins

Author:

Melosh H. J.12,Freed Andrew M.1,Johnson Brandon C.2,Blair David M.1,Andrews-Hanna Jeffrey C.3,Neumann Gregory A.4,Phillips Roger J.5,Smith David E.6,Solomon Sean C.78,Wieczorek Mark A.9,Zuber Maria T.6

Affiliation:

1. Department of Earth, Atmospheric, and Planetary Sciences, Purdue University, 550 Stadium Mall Drive, West Lafayette, IN 47907, USA.

2. Department of Physics, Purdue University, 525 Northwestern Avenue, West Lafayette, IN 47907, USA.

3. Department of Geophysics, Colorado School of Mines, 1500 Illinois Street, Golden, CO 80401–1887, USA.

4. Solar System Exploration Division, NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA.

5. Planetary Science Directorate, Southwest Research Institute, Boulder, CO 80302, USA.

6. Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA 02139–4307, USA.

7. Department of Terrestrial Magnetism, Carnegie Institution of Washington, Washington, DC 20015, USA.

8. Lamont-Doherty Earth Observatory, Columbia University, Palisades, NY 10964, USA.

9. Institut de Physique du Globe de Paris, Sorbonne Paris Cité, Université Paris Diderot, 75205 Paris Cedex 13, France.

Abstract

Lunar Mascons Explained The origin of lunar mass concentrations (or mascons), which appear as prominent bull's-eye patterns on gravitational maps of both the near- and far side of the Moon, has been a mystery since they were originally detected in 1968. Using state-of-the-art simulation codes, Melosh et al. (p. 1552 , published online 30 May; see the Perspective by Montesi ) developed a model to explain the formation of mascons, linking the processes of impact cratering, tectonic deformation, and volcanic extrusion.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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